fix(tool-search): add published date, center copy button

- Add formatTimeAgo utility function for relative time display
- Show "Published X ago" at bottom of each tool card using npmPublishedAt
- Center CodeBlock copy button vertically for better alignment
- Update Tool interface to include npmPublishedAt from API

apps/web/src/app/tool/tool-search/page.tsx

@@ -10,6 +10,7 @@ import { Input } from '@tpmjs/ui/Input/Input';
 import { ProgressBar } from '@tpmjs/ui/ProgressBar/ProgressBar';
 import { Select } from '@tpmjs/ui/Select/Select';
 import { Spinner } from '@tpmjs/ui/Spinner/Spinner';
+import { formatTimeAgo } from '@tpmjs/utils/format';
 import Link from 'next/link';
 import { useEffect, useState } from 'react';
 import { AppHeader } from '~/components/AppHeader';
@@ -25,6 +26,7 @@ interface Tool {
   package: {
     npmPackageName: string;
     npmVersion: string;
+    npmPublishedAt: string;
     category: string;
     npmRepository: { url: string; type: string } | null;
     isOfficial: boolean;
@@ -323,19 +325,23 @@ export default function ToolSearchPage(): React.ReactElement {
                           )}
                         </div>
 
-                        {/* Install command - onClick prevents propagation to parent Link */}
-                        <div
-                          className="mt-auto"
-                          onClick={(e) => e.stopPropagation()}
-                          onKeyDown={(e) => e.stopPropagation()}
-                          role="presentation"
-                        >
-                          <CodeBlock
-                            code={`npm install ${tool.package.npmPackageName}`}
-                            language="bash"
-                            size="sm"
-                            showCopy={true}
-                          />
+                        {/* Bottom section with install command and published date */}
+                        <div className="mt-auto space-y-2">
+                          <div
+                            onClick={(e) => e.stopPropagation()}
+                            onKeyDown={(e) => e.stopPropagation()}
+                            role="presentation"
+                          >
+                            <CodeBlock
+                              code={`npm install ${tool.package.npmPackageName}`}
+                              language="bash"
+                              size="sm"
+                              showCopy={true}
+                            />
+                          </div>
+                          <div className="text-xs text-foreground-tertiary">
+                            Published {formatTimeAgo(tool.package.npmPublishedAt)}
+                          </div>
                         </div>
                       </CardContent>
                     </Card>

packages/ui/src/CodeBlock/variants.ts

@@ -59,12 +59,12 @@ export const codeBlockCodeVariants = createVariants({
  */
 export const codeBlockCopyButtonVariants = createVariants({
   base: [
-    // Position
-    'absolute top-2 right-2',
+    // Position - vertically centered on right side
+    'absolute right-2 top-1/2 -translate-y-1/2',
     // Display
     'flex items-center justify-center',
     // Size
-    'w-8 h-8',
+    'w-7 h-7',
     // Background
     'bg-surface-elevated hover:bg-accent',
     // Border

packages/utils/src/format.ts

@@ -9,3 +9,27 @@ export function formatDate(date: Date): string {
 export function formatNumber(num: number): string {
   return new Intl.NumberFormat('en-US').format(num);
 }
+
+/**
+ * Format a date as a relative time string (e.g., "2 days ago", "3 months ago")
+ */
+export function formatTimeAgo(date: Date | string): string {
+  const now = new Date();
+  const then = typeof date === 'string' ? new Date(date) : date;
+  const diffMs = now.getTime() - then.getTime();
+  const diffSecs = Math.floor(diffMs / 1000);
+  const diffMins = Math.floor(diffSecs / 60);
+  const diffHours = Math.floor(diffMins / 60);
+  const diffDays = Math.floor(diffHours / 24);
+  const diffWeeks = Math.floor(diffDays / 7);
+  const diffMonths = Math.floor(diffDays / 30);
+  const diffYears = Math.floor(diffDays / 365);
+
+  if (diffSecs < 60) return 'just now';
+  if (diffMins < 60) return `${diffMins}m ago`;
+  if (diffHours < 24) return `${diffHours}h ago`;
+  if (diffDays < 7) return `${diffDays}d ago`;
+  if (diffWeeks < 4) return `${diffWeeks}w ago`;
+  if (diffMonths < 12) return `${diffMonths}mo ago`;
+  return `${diffYears}y ago`;
+}